Not sure I agree? I made some famously (in my family) weird mistakes in writing when I was young. They were obvious dyslectic issues. Mostly that changed becaus

Not sure I agree? I made some famously (in my family) weird mistakes in writing when I was young. They were obvious dyslectic issues. Mostly that changed because I haven't shown any traits for years in reading & writing. I had an amazing teacher for reading (my mom, who was a teacher). OTOH while I was educated in music for a long time, I have some kind of problem reading music that disappears when it's projected on a big screen. Yes, I have corrected vision. If I had been smarter I would have just memorized everything I played, which is what I have to do now because projecting music isn't too practical ATM. So while I think for some people it's intrinsic, I think you're onto something. Never actually considered it as a cause.